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YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
e2
Warning: water flow low
TBD
e3
Oil level low protection
TBD
e7
System pressure difference protection
TBD
eA
Heat exchanger-pressure transducer sensor error (similar to lower pressure
transducer protection)
TBD
eC
Oil-pressure transducer sensor error (similar to lower pressure transducer
protection)
TBD
e0
Economizer-discharge temp. sensor error
TBD
e9
Economizer-discharge pressure sensor error
TBD
eF
Compressor brand sensor error
TBD
bH
Water pump temp. sensor
TBD
oE
Any other error that the outdoor unit needs to stop
TBD
E8
Anti-high temperature protection
Running LED-Off 3S, Blinks 8 times
E9
Anti-cold blowing (discharging) protection
Running LED-Off 3S, Blinks 9 times
F1
Indoor air temp. sensor error/bad-broken, shorted…
Cooling LED-Off 3S, Blinks 1 time
F2
Indoor coil temp. sensor error/bad-broken, shorted…
Cooling LED-Off 3S, Blinks 2 times
F4
Outdoor coil temp. sensor error/bad-broken, shorted…
Cooling LED-Off 3S, Blinks 4 times
F5
Compressor discharge temp. sensor error/bad-broken, shorted…
Cooling LED-Off 3S, Blinks 5 times
F7
Cooling-oil return error
Cooling LED-Off 3S, Blinks 7 times
FC
Slide door error, or air louver mechanism error
TBD
FE
Over-load sensor error
TBD
H8
Water level-high /overflow protection
Heating LED-Off 3S, Blinks 8 times
H9
Ele. heater error
Heating LED-Off 3S, Blinks 9 times
b7
Outlet temp. sensor error
Cooling LED-Off 3S, Blinks 22 times
b5
Inlet temp. sensor error
Cooling LED-Off 3S, Blinks 19 times
d1
DRM running mode 1
d2
DRM running mode 2
d3
DRM running mode 3
ERROR AND PROTECTION CODE SUMMARY
SAMPLE SYSTEM LAYOUT
Notes: Actual unit/ part appearance and
installation may vary from the illustrated.
Subject to continuous improvement and
change without notice.
Wrench
Air out
Drainage hose
Connection pipe
Disconnect Box
To correctly sized
HVAC CIRCUIT
BREAKER
Display icon (May vary open models):
Air wall sleeve
Guide panel
Filter
Bolt
Nut
Pipe/wire
wall sleeve
Digital
display
Lineset PVC cover
Notes
:
1.Some codes are not malfunctions and will not require you to do anything, since the unit will resume normal
functions once the unit finishes its designated work such as defrost, oil return...
2.Some other codes denote malfunctions and the unit will not resume normal functions until your technician
checks your unit and fixes the problems such as dirty coils, clogged filters, bad control boards...You can
have your technician to call 866-833-3138 for help of technical support and trouble-shoot.
UNIT MAINTENANCE &
SER
VICE GUIDE
UNIT MAINTENANCE &
SER
VICE GUIDE
